The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

A little-known park with unusual, half-ruined structures and a mystical energy.

An abandoned Byzantine fortress and notorious prison.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

Special benches that play Chopin's music are scattered throughout his native city.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

The oldest housing complex in Riga is a mini timeline of architectural trends.

A black cat protests the City Guild in Riga's Old Town.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

Things aren't quite what they seem at this mind-bending museum.

This micro-nation may be some sort of prank, but its constitution sure seems official.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

Time stands still at this serene burial ground in the center of Budapest.